King D16A1/H22A4/F23A Performance Main Bearings (STDX)

King Performance Main Bearings deliver precision engineering for D16A1, H22A4, and F23A engines. These STDX standard-size bearings feature advanced metallurgy and tight tolerances to withstand high RPM demands and increased boost pressures. Engineered for reliability in both street and track applications, they provide superior load capacity and reduced friction for optimal engine performance. Direct fit replacement for stock applications seeking enhanced durability and consistent power delivery.